Cisco VPN :: ASA 5510 L2L VPN On Backup Interface
Dec 9, 2012
I have an ASA 5510 running 8.4 with dual ISPs setup on 2 different interfaces: outside(primary),backup(backup). I also have a site to site VPN to another ASA in another city. The VPN is now setup on the outside interface and works fine. What I wanted to do is to make the VPN run over the backup interface only.
So, I modified the the crypto map on the remote side to use the backup interface IP and created a tunnel-group for it. I then created a crypto map for the backup interface and enabled ikev1 on it. The default route is set to use the outside interface so I created a static route that routes traffic bound for the outside interface on the remote side to the backup interface default gateway. I can get the tunnels to establish but no traffic is passing through them. I though then that I need a NAT for the tunnel traffic to I created a NAT as well but still no traffic passed. I tried the packet-tracer and it said the traffic was allowed and from the show crypto ipsec sa command I can see the tunnel setup but no traffic will go across it.
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Nov 12, 2012
We have a 5510 and I have a second ISP setup for a backup link. We have 4 ports connected to 4 different internal subnets. I want to force one of the ports to use the backup ISP link at all times. I'm having a little problem with where I need to make the changes in my ASA.
Interface "outside" is my main ISP
Interface "building3" is my backup ISP.
I want to force the "Guest" network to use the "building3" link for all traffic. Here's a snippet of my config
global (outside) 10 interface
global (building3) 10 interface
nat (inside) 0 access-list nonat
nat (inside) 10 0.0.0.0 0.0.0.0
nat (Guest) 10 0.0.0.0 0.0.0.0
[URL]
Do I need to change the global pool or create a new one? I have a couple free public IP addresess on the building3 subnet I can use for a pool.
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Jun 20, 2011
Does backup interface is supported on ASR?
interface GigabitEthernet0/2/1
description 3750_Stack_1
backup interface GigabitEthernet0/2/2
ip address 100.50.50.242 255.255.255.248
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Nov 21, 2011
I have setup ASA 5505 with 2 ISP, named outside (primary) and backup, the scenario is if outside down, then backup will take over, it works now. But it is not working when the primary connection cannot reach the gateway with the interface still up.
Is it possible when the primary connection cannot reach the gateway then backup automatically take over?
My configuration is:
ASA Version 8.2(1)
!
hostname cisco
[Code].....
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Sep 2, 2010
I have a problem in configuring two pair of backup interface on my customer's router (3845). It's ok when I configure just one of them. If I configure both pairs of interfaces into backup interface, one of them will be in disabled mode, as shown below :
WANR01#sh ip int bri
Interface IP-Address OK? Method Status Protocol
GigabitEthernet0/0 172.16.199.106 YES NVRAM up up
GigabitEthernet0/1 172.16.3.5 YES NVRAM up up
Serial0/0/0 unassigned YES NVRAM administratively down down
Serial0/0/1 unassigned YES NVRAM administratively down down
FastEthernet0/1/0 125.213.133.186 YES NVRAM standby mode down
FastEthernet0/2/0 172.112.22.6 YES NVRAM standby mode/disabled down
FastEthernet0/2/1 123.231.177.238 YES NVRAM up up
Loopback0 172.16.199.12 YES NVRAM up up
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Jan 18, 2011
I have two 3750 switch.switch A(main) and switch B is connected by OFC but i have another wireless link for backup.Now if OFC goes down then i manually connect wireless link with switch B for this reasons i am faceing a lot of problem. I want without any changing of cable if my primary link goes down then my backup link automaticaly goes up and vice versa .
Switch-A port gi1/0/9 and Switch-B port gi1/0/9 is connect by OFC Switch-A port gi1/0/8 and Switch-B port gi1/0/8 is connect by Wireless link (backup) i attach my network diagram kindly find the attachment file.
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Sep 8, 2012
Since WLC5508 MGMT interface is configured a AP-Mgr at the same time, can I set a Backup Port to WLC5508 MGMT interface? Refer to WLC configuration Guide:
In the Backup Port text box, enter the number of the backup port assigned to the management interface. If the primary port for the management interface fails, the interface automatically moves to the backup port.
Note Do not define a backup port for an AP-manager interface. Port redundancy is not supported for AP-manager interfaces. If the AP-manager interface fails, all of the access points connected to the controller through that interface are evenly distributed among the other configured AP-manager interfaces
if I need to configure the backup port for MGMT interface, i need to remove the AP-manager on MGMT interface and create a network dynamic interface for AP-Manager ?
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Apr 5, 2011
I would like to setup backup ISP in our ASA5510. Right now the the firewall has for default gateway following command:
"route outside 0.0.0.0 0.0.0.0 114.324.321.33 1" i am changing this to route outside 0.0.0.0 0.0.0.0 114.324.321.33 10 track 1 ...so i can setup sla monitoring. As soon as i do the above command and remove the original "route outside 0.0.0.0 0.0.0.0 114.324.321.33 1" from asa then internet connection drops. Right now asa interface Ethernet0/0 has main isp configured and configuring interface Ethernet0/3 as backup. interface Ethernet0/3 name if backup security-level 0 ip address 114.324.321.34 255.255.255.252 no shut global (backup) 1 interface.
route outside 0.0.0.0 0.0.0.0 114.324.321.33 10 track 1 ( Right now in firewall i have" route outside 0.0.0.0 0.0.0.0 114.324.321.33 1 " ) route backup 0.0.0.0 0.0.0.0 115.283.212.23 20 track 2
track 1 rtr 1 reach ability
track 2 rtr 2 reach ability
sla monitor 1type echo protocol ipIcmpEcho 114.324.321.33 interface outside sla monitor schedule 1 life forever start-time now sla monitor 2type echo protocol ip Icmp Echo 115.283.212.23 interface backup sla monitor schedule 2 life forever start-time now. Also our firewall has site to site vpn and 1 main ip configured for exchange and remote access.
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Apr 27, 2011
i will going to buy a router 2911 but i want know if support a interface ADSL modulo like backup in case that my primary link WAN Ethernet down and up the adsl link with a module HWIC ADSL pots.
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May 29, 2012
ow to backup Cisco ASA-5510 from a Linux server via TFTP?I do know how to backup a switch or a router. Basically creating an access list such as:
access-list 55 remark PERMIT hosts requesting TFTP access
access-list 55 permit host 172.16.0.27
and allowing access to
tftp-server nvram:startup-config 55
all this inside the router or the switch. From the Linux box just running a simple command such as:
tftp 172.16.0.3 -c get startup-config newbackup.conf
where 172.16.0.3 is the IP address of the switch and newbackup.conf is the name of the config file stored on the Linux machine.So, how do I do that with an ASA box? how to backup ASA from inside it.
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Mar 4, 2011
I have two ISP circuits and the following devices in hand:
1. Cisco ASA 5510
2. Cisco 2800 router
3. Cisco 3750 switch
I've finished a part of the configs on above equipments, please refer to the attached diagram.And I'm making a test in order to achieve the below features:
1. By default, packets from PC1 go out through ISP 1. Packets from PC2 go out through ISP 2
2. When ISP 1 is down, packets from PC1 changed its way to ISP 2 through the 2800 router. And when ISP 2 is down, Packets from PC2 changed its way to ISP 1 through ASA 5510.
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Apr 1, 2008
I'm looking for a system to backup the configuration of the ASA like this I've noticed:
if the ASA is 5510 or higher and has sw 8.x and ASDM 6.x we have ASDM -> Tools -> Backup Configuration command that create a folder containing all configuration files and webvpn personalization
What I have to do to have the same command on ASA 5505 sw 8.x and ASDM 6.x? Or is there someting similar using the console too?
And what else for ASA which have sw 7.x and ASDM 5.x, is there the possibility to backup webvpn personalization?
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Jan 20, 2013
Here's my problem. I'm going to be using Cisco 1941 routers at a bunch of remote sites. All of these sites have 2 comm paths out. Some of them have 2 IP/VHF radios and some have 1 IP/VHF radio and a copper link using Patton ethernet extenders. From the VHF radios the data hit our MPLS network back to our HQ and the sites with copper go directly back to our HQ. Everything ends up at a Cisco 4948 switch. The problem I'm having is that I want the routers at the remote site to use one ethernet port (G0/0) as the primary and the other (G0/1) as the backup interface. I've tried the backup interface command but the problem is that depending on where an outage occurs the ethernet link to either the radio or Patton stays up so it never switches over. We're using OSPF as our routing protocol and I'm sure there's something that can be done with it but I'm not sure what.
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Oct 16, 2011
I have a asa 5520 with an outside and backup interface. I am trying to configure two static nat statements from the inside to the outside and backup interface. Here is what I have configured so far.
object network obj-10.1.1.254
host 10.1.1.254
object network obj-10.1.1.254
nat (inside,outside) static 172.25.10.3
I want to also use nat (inside,backup) static 172.25.10.3
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Feb 15, 2012
I have a ASA 5510. I setup basic configuration to test internet with 2 ISPs. My first line works with out any problem. But my second line doesn't work. Even when i wipe the configuration, and setup only my second isp. Internet doesn't work. Can you tell me if there is anything wrong with this config?
CaaaA01# sh run
: Saved
:
ASA Version 8.3(1)
!
hostname CaaaA01
domain-name example.com
[code].....
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Mar 21, 2012
Is it possible for AnyConnect to utilise the backup server defined in the connection profile when the session limit is hit on an ASA? Essentially if I hit the 250 limit on my ASA 5510 in Region A, will it try the backup server ASA defined in the connection profile which is in Region B?
From what I have read, the backup server only kicks in when the AnyConnect client cannot connect, but in this scenario it will connect but get an error message.
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Dec 14, 2011
I have one ASA 5510, a primary ISP (cable, the single public IP lives on the ASA), and a backup ISP (ADSL, separate router that hosts its single public IP). I use IP tracking to detect link down on the primary. When I pull the plug on the cable modem and go to "Route monitoring", I can see the ASA's default route is now the backup ISP default route.That conforms with [URL] Pings to 8.8.8.8 fail however, and when I do a packet trace the ASA complains about the dynamic nat rule that still points to the primary ISP's interface.Only when I change the existing dynamic NAT rule (on my inside interface) to use the backup ISP's pool (which is a single 192.168.x.y address) , does 8.8.8.8 reply to my pings. So it kinda works but it's not full auto . I can't add a second dynamic nat rule on the same inside interface, nor can I select 2 IP pools in a single dynamic nat rule.
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Oct 19, 2011
I am running a ASA 5510 in multiple context mode. IOS 6.4(2), ASDM 6.4(5)106.
In older ios/asdm versions it was possible to backup the configuration using ASDM.
In 6.4(5)106 i am missing this feature (see attachment)
Is it possible to backup a multiple context firewall using ASDM and above mentioned software versions?
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Jul 24, 2012
how to configure a backup route to the internet. My client has 2 ISP and basically they want to use 1 ISP and in case the ISP fails, use the other one as backup route to the internet.
The problem I’m facing is that each ISP is plugged to a dedicated ASA 5510, so 1 ISP in one firewall and 1 in the other. Both ASA are plugged to an internal network in a dedicated VLAN with a L3 switch and that L3 switch manages the internal network.
My question is, how can I tell my switch to use ASA1 to go out to the internet and in case the ASA 1 OR THE LINK TO INTERNET used by ASA 1 fails, use ASA 2? It would be great if I can send traffic to the internet thru both connections at the same time. Also, I know the ASA has High Availability configuration, but that applies only if both licenses in the devices are the same and I have a mismatch with the SVPN license, and also I don't know if with my current topology I can use the High Availability model, so I think I can’t use that option and the solution must be applied in the L3 switch, but I don’t know how to tell it to use ASA1 and if failure of the device or the outside interface plugged to ISP 1, then use ASA2. Besides, I would like to know how to optimize this config to do the switch between internet connections seamless to the users if possible (there are VoIP calls on this floor, so I don't want to drop the calls).
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Feb 10, 2013
I am trying to use the built in feature of Cisco ASA 5510 smart call home feature with the purpose of automatic backup creation by email. I found the configuration [URL]. I already configured the said instructions but when I send a test email it says it cannot contact the email server. Below is the error that I am getting from our ASA. I am new to firewall.
OGI-MNL-ASA-FW0# call-home test profile ASA_Config_Backup
INFO: Sending test message to fcaccam@example.com...
ERROR: Connecting to SMTP server xxx.xx.xxx.xx failed: CONNECT_FAILED(33)
ERROR: Failed: CONNECT_FAILED(33)
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Dec 23, 2012
i have an ASA 5510 My ISP provides for me 2 separate public networks. One is routable from outside of the world and one is not (and is used as a gateway for the THAT routable network)
Assume that non routable network is a.a.a.a and routable is b.b.b.b so we have 2 interfaces on asa - a.a.a.1 and b.b.b.1 Physically this network b.b.b.b is behind network a.a.a.a one cable comes to me and plugged to ASA As i said all traffic from/to external(routable) network is going through network a.a.a.a (and a default gateway at ISP) So the problem:For my international partners i need to provide VPN.So the traffic flow is the following:for exaple a client with public ip 1.1.1.1 using cisco VPN client trying to connect to b.b.b.1 The packet arrives to interface a.a.a.1 and............. Being discarded.7Dec 24 201211:09:477100051.1.1.162548b.b.b.110000TCP request discarded from 1.1.1.1/62548 to internet:b.b.b.1/10000 I assume that the ASA discards the packet BECAUSE IT COMES FROM a WRONG interface.Am i right?Also i tried to setup a bypas policy, but no effect?
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Mar 20, 2011
Have an ASA 5510. Setting up a new DMZ zone for wireless and it will only have Internet access. What are the steps so that users on this new DMZ subnet can VPN into the Outside interface on the same ASA?
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Mar 1, 2011
I have a trouble with Cisco ASA 5510. I configured an SSL VPN with bookmarks to some application. When the users make access to the Web Portal they have to login twice: one for enter in the SSL and one for enter in the application.
How to bypass double authentication?
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Mar 26, 2013
I attached the complete config. The earlier discussion, I cannot select reply. Looks like ACL is denying it. But I am not sure which one or how to permit it.
sh run
: Saved
:
ASA Version 8.0(4)
[Code].....
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Sep 14, 2011
I would like to route traffic that are coming in and going out to the same interface on ASA. I am using inside interface with security-level 100. In this URL, [URL], ASA is able to do that.
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Sep 19, 2012
I have recently installed an ASA5510 at a site in South Africa to connect via VPN to a site in the UK (ASA5520). The VPN comes up fine with the 5520 in the UK, however, I can not connect to the inside interface over the VPN, but can access it from the internal LAN. All other hosts on the LAN are accessible over the VPN.
The 5510 also has another VPN to another site in SA and the 2nd site cannot ping the interface either.
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Oct 5, 2012
I need the ssh access on my ASA outside interface and have added
ssh ipremoved 255.255.255.255 outside access-list acl_outside extended permit tcp host ipremoved any eq 22 but this is the log i get from ASA
Oct 06 2012 16:10:04: %ASA-3-710003: TCP access denied by ACL from ipremoved/39884 to outside:ipremoved/22
Cisco Adaptive Security Appliance Software Version 8.2(5) Device Manager Version 6.4(5)
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Oct 11, 2011
I currently have an ASA 5510 setup with Dual homed ISP's and a remote access IPsec VPN setup to terminate at either interface. The first interface is named Outside and the second is simply called Outside-2. When outside the company(such as at home), the VPN client will connect on the Outside-2 interface and work normally. The problem is while testing on our DMZ, the VPN Client will not connect on the Outside-2 interface. It will try that interface fail to connect and then connect to the backup Outside interface. This isn't a huge concern because it still connects, but if we were ever to get rid of one of those connections, it would be nice to reliably test from our DMZ.
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Aug 5, 2012
We recently upgraded our bandwidth and I have to change the ip address on our ASA 5510. I just want to make sure that I am doing it right. All I will need to do is open up the ASDM and under confiugration go to interfaces and make the needed changes to the outside interface. Then under routing I will make the gateway IP change on the outside interface.
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Jul 17, 2012
I want to allow ICMP traffic on ASA 5510 from LAN interface to DMZ. I've permit any traffic and added ICMP to the inspestion list also but still there is problem. Belos is the configuration. The image is asa822-k8.bin
:
ASA Version 8.2(2)
!
hostname fw-01
names
!
interface Ethernet0/0
[code]....
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Mar 26, 2013
I have a WAN interface and 2 LAN interface. I need both the LAN be able to access a server outside the network via the WAN (outside) interface. I am using a ASA 5510 firewall instead of a router, because I don't have a router. It looks simple enough but it does not work. I ping from the a PC (172.16.22.8) connected to LAN (inside) Network to 10.10.10.1 which is the WAN local interface also did not work. But from the ASA Firewall, I could ping my LAN (inside) PC. I followed a config i get from this forum. However, it did not work. Below my config.
interface Ethernet0/0
nameif outside
security-level 0
[Code]....
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Feb 4, 2013
I'm not clear about the capabilities of the ASA 5510 GigE interfaces (eth0/0 and eth0/1) with an without IPSEC tunnels enabled.
This page [URL] shows a figure of 170Mbps 'Maximum 3DES/AES VPN Throughput'. Does that mean per IPSEC tunnel or for the whole interface if it is IPSEC-enabled?
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Feb 13, 2012
I am having issues with the ASA 5510 management interface. I can't communicate with this interface. It is showing DOWN/DWON even if I type NO SHUT several times.
My existing config is as follows
our-asa-01# sh run
Saved
ASA Version 7.2(5)
hostname our-asa-01
names
dns-guard
interface Ethernet0/0
[code]....
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